Discovery of novel steroidal histamine H3 receptor antagonists/inverse agonists. Part 2. Versatile steroidal carboxamide derivatives
作者:István Ledneczki、Zsolt Némethy、Pál Tapolcsányi、János Éles、István Greiner、Eszter Gábor、Balázs Varga、Ottilia Balázs、Viktor Román、György Lévay、Sándor Mahó
DOI:10.1016/j.bmcl.2019.126643
日期:2019.10
work, novel steroid-based histamine H3 receptor antagonists were identified and characterized. Using an ‘amine-to-amide’ modification strategy at position 17, in vitro and in vivo potent monoamino steroid derivatives were found during the lead optimization. Usage of the non-basic amide moiety resulted in beneficial effects both in activity and selectivity. The 15α-carboxamido derivative 10 was not only
为了进一步进行我们先前的工作,鉴定并表征了新型的基于类固醇的组胺H 3受体拮抗剂。在前导优化过程中,使用第17位的“胺至酰胺”修饰策略,发现了体外和体内有效的单氨基类固醇衍生物。非碱性酰胺部分的使用在活性和选择性上均产生有益的作用。15α-羧酰胺基衍生物10不仅对人和大鼠H 3受体具有高活性,而且对大鼠毒蕈碱受体的活性可忽略不计。此外,它被证明在人和大鼠微粒体中相当稳定,并在体内显示出显着的稳定性。药效学大鼠血球成因试验和迷宫水认知模型中的效力。基于所有这些考虑,化合物10被指定为临床前候选药物。